دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a mechanism used to regulate the amount of weight 00 the bit without the presence of personnel. Automatic drillers free the driller from the sometimes tedious task of manipulating the drawworks brake to maintain correct weight on the bit. Also called an automatic drilling control unit.

n: Mechanism to automatically control the weight on the bit.

n: The equipment controlling the bit weight automatically during drilling.

n: a device that controls the rate of penetration by maintaining a predetermined constant weight on the bit. Also called an automatic driller or automatic drilling control unit.

n: the equipment which controls the drilling speed without the controls of the driller

n: the special tools used to display ,record or alarm the character and parameter about the drilling such as weight pen,eight-pen recorder for drilling

n: the well pressure manifold and the throttle manifold connected to blowout hookup at the well head

n: refer to drilling control instrument

n: the drilling control equipment installed up of the collar ,and composed mainly by drilling through fitting, adaptors and preventer

n: the relational expression which can express the relation among the drilling controllable premeter,uncontrollable premeter
and drilling rate